Pronounces with a bend in one's lips? (5)

I believe the answer is:

lisps

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'pronounces' is the definition.
(lisping is a kind of pronouncing)

'a bend in one's lips?' is the wordplay.
's lips' can be anagrammed to 'LISPS'.
But, I am not clear how this is indicated.

'with' acts as a link.

Can you help me to learn more?

(Other definitions for lisps that I've seen before include "Slips (anag.)" , "Speech defects" , "Speaks with defective sibilants" .)

I've seen this clue in the Evening Standard.

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